Arabinogalactan

Arabinogalactan is highly soluble, and contrary to ordinary hydrocolloids gives low viscousity at low concentrations. pH in solution is 4.0-4.5. Solutions of arabinogalactan can be as high as 60% and can withstand the addition of up to 70% alcohol without precipitation. The viscousity of arabinogalactan is not affected very much by pH and electrolytes. Arabinogalactan substantially reduces the surface tension of water solution as well as the interfacial tension between water and oil mixtures. This makes arabinogalactan a very effective emulsifying agent [1].

Arabinogalactans can contain covalently linked proteins [5,9].

No specific adhesion to cellulose has been observed [12].

Arabinogalactan does not adhere signicantly (<5%) to curdlan [13].